.academy-page {
    background: #f8fafc;
}

.academy-page .site-nav .is-current {
    color: var(--primary);
}

.academy-app-return {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px clamp(20px, 5vw, 72px);
    color: #1E4D3D;
    background: #DCE9E3;
    border-bottom: 1px solid var(--line-strong);
}

.academy-app-return strong,
.academy-app-return span {
    display: block;
}

.academy-app-return span {
    margin-top: 2px;
    color: #356C57;
    font-size: 14px;
}

.academy-home-hero,
.academy-hero {
    padding: 72px clamp(20px, 5vw, 72px);
    background:
        linear-gradient(90deg, rgba(245, 247, 246, 0.97), rgba(245, 247, 246, 0.88)),
        url("/pngs/forklift.png") right 7vw bottom 32px / min(28vw, 340px) no-repeat,
        #f5f7f6;
    border-bottom: 1px solid var(--line);
}

.academy-home-hero {
    min-height: 520px;
    display: grid;
    align-items: center;
}

.academy-home-hero > div {
    max-width: 780px;
}

.academy-home-hero h1,
.academy-hero h1 {
    max-width: 820px;
    margin-bottom: 18px;
    font-size: clamp(38px, 5vw, 62px);
    line-height: 1.04;
}

.academy-home-hero p,
.academy-hero p {
    max-width: 700px;
    color: #334155;
    font-size: 18px;
}

.academy-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    align-items: start;
}

.academy-back-link {
    display: inline-flex;
    margin-bottom: 18px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.academy-back-link:hover {
    text-decoration: underline;
}

.academy-path {
    position: sticky;
    top: 86px;
    display: grid;
    gap: 8px;
    padding: 18px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.academy-path-title {
    margin-bottom: 4px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.academy-path a {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 9px;
    color: #334155;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
}

.academy-path a:hover,
.academy-path a.is-active {
    color: #ffffff;
    background: #1E4D3D;
}

.academy-path span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: #DCE9E3;
    color: #0F2F25;
    font-size: 12px;
    font-weight: 850;
}

.academy-path a.is-active span,
.academy-path a:hover span {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.academy-purpose-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    padding: 0 clamp(20px, 5vw, 72px);
    background: var(--line);
    border-bottom: 1px solid var(--line);
}

.academy-purpose-grid article {
    min-width: 0;
    padding: 28px 24px;
    background: #ffffff;
}

.academy-purpose-grid span,
.academy-lesson-card span,
.academy-card-label {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.academy-purpose-grid h2 {
    margin: 0 0 8px;
    font-size: 22px;
}

.academy-purpose-grid p,
.academy-lesson-card p {
    margin: 0;
    color: var(--muted);
}

.academy-index-section {
    background: #ffffff;
}

.academy-lesson-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.academy-lesson-card {
    min-width: 0;
    min-height: 214px;
    padding: 22px;
    color: var(--ink);
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    text-decoration: none;
}

.academy-lesson-card:hover {
    border-color: var(--line-strong);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.academy-lesson-card h3 {
    margin: 0 0 10px;
    font-size: 22px;
}

.academy-band {
    padding: 36px clamp(20px, 5vw, 72px) 56px;
    background: #f8fafc;
}

.academy-content {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: 24px;
    align-items: start;
}

.academy-main {
    display: grid;
    gap: 22px;
}

.academy-card,
.academy-section {
    padding: 24px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.academy-card p,
.academy-section p {
    margin: 0;
    color: #334155;
}

.academy-section h2 {
    margin: 0 0 10px;
    font-size: 25px;
    line-height: 1.18;
}

.academy-steps {
    display: grid;
    gap: 10px;
    margin: 0;
    padding-left: 22px;
    color: #334155;
}

.academy-steps li::marker {
    color: var(--primary);
    font-weight: 850;
}

.academy-faq {
    display: grid;
    gap: 10px;
}

.academy-faq details {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
}

.academy-faq summary {
    color: var(--ink);
    cursor: pointer;
    font-weight: 800;
}

.academy-faq p {
    margin-top: 10px;
}

.academy-demo {
    position: sticky;
    top: 86px;
}

.academy-demo-shell {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    min-height: 620px;
    overflow: hidden;
    background: #F5F7F6;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.academy-demo-sidebar {
    display: grid;
    align-content: start;
    gap: 8px;
    padding: 18px 12px;
    color: #ffffff;
    background: #123B2E;
}

.academy-demo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 6px 18px;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.academy-demo-brand img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.academy-demo-brand strong,
.academy-demo-brand span {
    display: block;
}

.academy-demo-brand strong {
    font-size: 18px;
    line-height: 1;
}

.academy-demo-brand span {
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 12px;
}

.academy-demo-sidebar > span {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 650;
}

.academy-demo-sidebar > span.active {
    background: #356C57;
}

.academy-demo-main {
    min-width: 0;
}

.academy-demo-topbar {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    min-height: 58px;
    padding: 10px 18px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
}

.academy-search {
    width: min(100%, 360px);
    padding: 9px 10px;
    color: var(--muted);
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    font-size: 14px;
}

.academy-demo-content {
    display: grid;
    gap: 18px;
    padding: 22px;
}

.academy-demo-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 22px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.academy-demo-header span {
    display: inline-flex;
    margin-bottom: 8px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.academy-demo-header h2 {
    margin: 0 0 6px;
    font-size: 25px;
}

.academy-demo-header p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.academy-demo-header button {
    align-self: start;
    padding: 8px 13px;
    color: #ffffff;
    background: var(--primary);
    border: 0;
    border-radius: 8px;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
}

.academy-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 20px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.academy-field-grid label {
    display: block;
    margin-bottom: 5px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
}

.academy-field-grid span {
    display: block;
    height: 38px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    background: #ffffff;
}

.academy-demo table {
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    border-collapse: separate;
    border-spacing: 0;
}

.academy-demo th {
    background: #f8fafc;
}

.academy-lesson-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    padding: 0 clamp(20px, 5vw, 72px) 56px;
    background: #f8fafc;
}

.academy-lesson-nav div {
    min-height: 98px;
    padding: 20px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.academy-lesson-nav div:last-child {
    text-align: right;
}

.academy-lesson-nav span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.academy-lesson-nav a {
    color: var(--primary);
    font-size: 20px;
    font-weight: 850;
    text-decoration: none;
}

.academy-lesson-nav a:hover {
    text-decoration: underline;
}

.academy-final {
    background: #ffffff;
}

@media (max-width: 1120px) {
    .academy-lesson-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .academy-content,
    .academy-hero {
        grid-template-columns: 1fr;
    }

    .academy-path,
    .academy-demo {
        position: static;
    }
}

@media (max-width: 820px) {
    .academy-purpose-grid,
    .academy-lesson-grid,
    .academy-lesson-nav,
    .academy-field-grid {
        grid-template-columns: 1fr;
    }

    .academy-lesson-nav div:last-child {
        text-align: left;
    }

    .academy-demo-shell {
        grid-template-columns: 1fr;
    }

    .academy-demo-sidebar {
        display: flex;
        gap: 8px;
        overflow-x: auto;
    }

    .academy-demo-brand {
        display: none;
    }

    .academy-demo-sidebar > span {
        white-space: nowrap;
    }

    .academy-app-return {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .academy-home-hero,
    .academy-hero {
        padding-top: 44px;
        padding-bottom: 44px;
        background:
            linear-gradient(180deg, rgba(248, 250, 252, 0.97), rgba(248, 250, 252, 0.95)),
            url("/pngs/forklift.png") right 18px bottom 18px / 150px no-repeat,
            #f8fafc;
    }

    .academy-demo-content,
    .academy-card,
    .academy-section,
    .academy-demo-header {
        padding: 18px;
    }

    .academy-demo-header {
        flex-direction: column;
    }
}